find the probability of selecting a "second grader that thinks sharks are scary" P(second grader AND sharks). write your answer as a percent.

snakes alligators sharks other total
first graders 10 13 15 12 50
second graders 12 10 23 5 50
total 22 23 38 17 100

1 answer

The probability of selecting a second grader that thinks sharks are scary is given by the number of second graders that think sharks are scary divided by the total number of students:

P(second grader AND sharks) = 23/100 = 0.23

As a percentage, this is 23%.